Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy
Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy Detail:
Real-time indoor air quality detection, single or combined measurement selection: PM2.5, CO2, TVOC, HCHO,Temperature and RH
3-color light indicates the range of the main measurement
Screen display optional
EM21 embedded installation Indoor Air Quality Monitor Simple and elegant type
❑LED Tri-colored lights
❑Visible air quality level
❑Compact and simple design
❑Gather real-time data and display history chart via a software platform
EM21 embedded installation Indoor Air Quality Monitor Screen display type
Show the detailed air quality on the screen
Display the real time values and 24-hour average of PM2.5, TVOCs, CO2
With on/off touch button to turn off /turn on screen
Technology Specifications
| Specifications | CO2 | TVOC | PM2.5
|
Temp&RH
|
HCHO
|
| sensor | NDIR | Metal oxide semiconductor | Laser particle sensor
Light scattering method |
High-precision digital integrated
Temperature and humidity sensor |
Electrochemical Formaldehyde sensors |
|
Measuring range |
400～5,000ppm | 0~ 4.0mg∕㎥ | 0~500μg∕㎥ | Temp:-20℃~60℃
Humidity:0~99%RH |
0~0.6mg/m3 |
| Output Resolution | 1ppm | 0.001mg∕㎥ | 1μg∕㎥ | Temp:0.01℃ Humidity:0.01%RH
|
0.001mg∕㎥ |
| Accuracy | ±50ppm + 3% of reading
or 75ppm |
<15% | <15% | Temp:±0.8℃ Humidity:±4.5%RH | ±0.005mg/㎥+5% of reading |
| General Specifications | |||
| Detection Parameters(max.) | PM2.5;CO2;TVOC;Temp&RH;HCHO | Power Supply |
24VAC/VDC±10%100~240VAC |
| Output (Optional)
|
RS485 (Modbus RTU)
WIFI @2.4 GHz 802.11b/g/n RJ45 (Ethernet TCP) PoE power supply Optional |
Shell material and IP level | PC fireproof material
IP30 |
| Operating
Environment |
Temp：-10~60℃
Humidity︰0~99%RH |
Overall Dimension | 91.00mm*111.00mm*51.00mm |
| Storage Condition | 0℃~50℃
0~70%RH |
Installation standard | Standard 86/50 pipe box (installation hole distance 60mm)
American standard pipe box (installation hole distance 84mm) |
Understand your air quality at all times
❑View real-time and historical data through RS485 or cloud-based platform such as MyTongdy , in computer or mobile APP
❑Check out or download data to analyze your indoor air quality and identify the pollution source as frequently as you need
❑Handle your indoor air quality by control the fresh air system or purification equipment automatically
Application scenarios
Widely used in commercial or residential spaces
Models Guide
| No. | Model | PM2.5 | CO2 | Temp&RH | VOC | HCHO | Output | Display | Power Supply |
| 1 | EM21-B/S12C/D | · | · | RS485 |
B No display S with display |
C: 24VAC/VDC
D: 100~240VAC |
|||
| 2 | EM21-B/S13C/D | · | · | · | |||||
| 3 | EM21-B/S15C/D | · | · | · | |||||
| 4 | EM21-B/S17C/D | · | · | · | · | ||||
| 5 | EM21-B/S18C/D | · | · | · | · | ||||
| 6 | EM21-B/S22C/D | · | · | WI-FI | |||||
| 7 | EM21-B/S23C/D | · | · | · | |||||
| 8 | EM21-B/S25C/D | · | · | · | |||||
| 9 | EM21-B/S27C/D | · | · | · | · | ||||
| 10 | EM21-B/S28C/D | · | · | · | · | ||||
| 11 | EM21-B/S32C/D | · | · | ||||||
| 12 | EM21-B/S33C/D | · | · | · | RJ45 Ethernet
(please contact our sales department for POE Power Supply) |
||||
| 13 | EM21-B/S35C/D | · | · | · | |||||
| 14 | EM21-B/S37C/D | · | · | · | · | ||||
| 15 | EM21-B/S38C/D | · | · | · | · |
We provide commercial air quality monitors
Including- indoor, in-duct, outdoor monitors
Help you build healthy indoor air quality
Tongdy Sensing Technology Corporation
Address:Building 8, No.9, Dijing Rd., Haidian Dist., Beijing 100095, China
Website:www.tongdy.com
Email:info@tongdy.com
Phone:86 10 59738930
Product detail pictures:
Related Product Guide:
Our purpose would be to offer good quality products at competitive price ranges, and top-notch support to clients around the whole world. We're ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy , The product will supply to all over the world, such as: Sacramento, Costa Rica, Naples, Our company follows laws and international practice. We promise to be responsible for friends, customers and all partners. We would like to establish a long-term relationship and friendship with every customer from all over the world on the basis of mutual benefits. We warmly welcome all old and new customers to visit our company to negotiate business.
By Erin from Hongkong - 2018.12.11 14:13
The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
By Delia from Johannesburg - 2017.03.08 14:45
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